fall back片语动词

后退、撤退、退却

The troops were ordered to fall back to a safer position.

部队接到命令，撤退到较安全的位置。

回落、下跌

Share prices fell back sharply after the announcement.

消息公布后，股价大幅回落。

依靠、求助于与 on 连用

If the business fails, she can fall back on her savings.

如果生意失败，她还可以靠自己的积蓄。

拨慢美式

The clocks fall back one hour this weekend.

这个周末时钟要拨慢一小时。

备用方案、退路

We need a fallback in case the main supplier cancels.

万一主要供应商取消订单，我们需要一个备用方案。

备用的、应急的

The team prepared a fallback plan before the launch.

团队在发布前准备了一套备用计划。